CN213162953U

CN213162953U - Outer mould for forming cold sand core

Info

Publication number: CN213162953U
Application number: CN202022065066.2U
Authority: CN
Inventors: 罗耀平; 颜登利; 李险峰
Original assignee: Jiangmen Guangjin Castings And Forging Foundry Co ltd
Current assignee: Jiangmen Guangjin Castings And Forging Foundry Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-05-11
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses an outer mould of cold sand core shaping relates to sand casting technical field. The utility model discloses a well template, top template, die block board and intercommunication mechanism, the top lid of well template is equipped with the top template, and the bottom of well template is located there is the die block board, forms the one deck between well template and the top template, forms the one deck between top template and the die block board, and two-layer overall arrangement about well template, top template and die block board are constituteed, and the mould of every layer spare, four well templates are connected through intercommunication mechanism. The utility model discloses a two-layer overall arrangement down, 24 moulds on every layer can realize big batch fast production, has improved production efficiency greatly, convenient and practical, and through a pouring rising head, can solidify the feeding for upper and lower two-layer product simultaneously, has further improved production efficiency, also designs gating system and rising head size through technology simulation moreover, guarantees the internal quality of product, can effectually eliminate inside shrinkage cavity of foundry goods, shrinkage porosity defect.

Description

Outer mould for forming cold sand core

Technical Field

The utility model belongs to the technical field of sand casting, especially, relate to an outer mould of cold sand core shaping.

Background

Sand casting refers to a casting process that produces a casting in a sand mold. Steel, iron and most nonferrous metal castings can be obtained by sand casting. The molding material used for sand casting is cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and the casting mould can adapt to single-piece production, batch production and mass production of castings, and is a basic process in casting production for a long time. However, in the traditional sand casting process, a sand mould adopts a pouring riser to perform solidification feeding for a layer of product, and the production efficiency is low, so that the existing outer mould for forming the cold sand core cannot meet the requirements in actual use, and an improved technology is urgently needed in the market to solve the problems.

Disclosure of Invention

An object of the utility model is to provide a cold sand core shaping outer mould through adopting two-layer overall arrangement down, through a pouring rising head, can solidify the feeding for upper and lower two-layer product simultaneously, has solved in traditional sand mould casting process, and the sand mould adopts a pouring rising head to solidify the feeding for the one deck product, problem that production efficiency is low.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to an outer mould of cold sand core shaping, including well template, top template, die block board and connectivity mechanism, the top lid of well template is equipped with the top template, the bottom of well template is located there is the die block board, form the one deck between well template and the top template, form the one deck between top template and the die block board, two-layer overall arrangement about well template, top template and die block board are constituteed, the mould of every layer spare, four well template is connected through connectivity mechanism.

Furthermore, two rows of first lower die cavities which are horizontally arranged at equal intervals are formed in the top surface of the middle die plate, a through groove is formed in the middle of the middle die plate, a handle is fixed on the outer side of the middle die plate, and two rows of second upper die cavities which are horizontally arranged at equal intervals are formed in the bottom surface of the middle die plate.

Further, two rows of first upper die cavities which are arranged at equal intervals are formed in the bottom surface of the top die plate, the first upper die cavities correspond to the first lower die cavities one to one, plug bushes are fixed in the middle positions of the top die plate, slots are formed in the outer side of the top die plate, and the size of each slot is larger than that of the handle.

Furthermore, two rows of second lower die cavities which are horizontally arranged at equal intervals are formed in the top surface of the bottom die plate, the second lower die cavities correspond to the second upper die cavities one to one, and the insertion blocks are fixed in the middle of the bottom die plate.

Furthermore, the inside of the plug bush is hollow, the bottom of the plug bush is open, the external size of the plug block is matched with the internal size of the plug bush, and the bottom template is connected with the top template in an inserting mode through the plug block and the plug bush.

Furthermore, the communicating mechanism comprises a pouring pipe, conveying pipes and communicating pipes, wherein two identical conveying pipes are arranged on two sides of the pouring pipe, and each conveying pipe is communicated with the first lower die cavity and the second upper die cavity in the same row in the middle die plates on the two sides.

The utility model discloses following beneficial effect has:

1. the utility model discloses a two-layer overall arrangement about well template, top form and die block board are constituteed, and two-layer overall arrangement is adopted to the mould of every layer 24, can once only produce a plurality of finished products, can realize big batch fast production, has improved production efficiency, convenient and practical greatly.

2. The utility model discloses the mould through a pouring rising head, can solidify the feeding for upper and lower two-layer product simultaneously, has further improved production efficiency, also designs gating system and rising head size through the technology simulation moreover, guarantees the inside quality of product, can effectually eliminate inside shrinkage cavity of foundry goods, shrinkage porosity defect.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the outer mold for molding the cold sand core of the present invention;

FIG. 2 is a top three-dimensional structure view of the middle form and the communicating mechanism of the present invention;

FIG. 3 is a bottom three-dimensional structure view of the middle form and the communicating mechanism of the present invention;

FIG. 4 is a structural diagram of the top form of the present invention;

fig. 5 is a structural diagram of the bottom form of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a middle template; 11. a first lower chase; 12. a through groove; 13. a handle; 14. a second upper die cavity; 2. a top template; 21. a first upper cavity; 22. inserting a sleeve; 23. grooving; 3. a bottom template; 31. a second lower die cavity; 32. inserting a block; 4. a communicating mechanism; 41. pouring a pipe; 42. a delivery pipe; 43. a communication pipe is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1-5, the utility model relates to an outer mould of cold sand core shaping, including well template 1, top form 2, die block board 3 and connectivity mechanism 4, the top lid of well template 1 is equipped with top form 2, and well template 1's bottom is located die block board 3, forms the one deck between well template 1 and the top form 2, forms the one deck between top form 2 and the die block board 3, and two-layer overall arrangement about well template 1, top form 2 and the die block board 3 are constituteed, the mould of 24 on every layer, and four well templates 1 are connected through connectivity mechanism 4.

As shown in fig. 2-3, two rows of first lower cavities 11 are formed in the top surface of the middle template 1, the middle of the middle template 1 is provided with a through groove 12, a handle 13 is fixed on the outer side of the middle template 1, two rows of second upper cavities 14 are formed in the bottom surface of the middle template 1, and the two rows of first lower cavities 11 and the two rows of second upper cavities 14 can be matched with the top template 2 and the bottom template 3 to form an upper-lower layout.

As shown in fig. 4-5, two rows of first upper cavities 21 are formed in the bottom surface of the top mold plate 2, the first upper cavities 21 are arranged in a horizontal and equidistant manner, the first lower cavities 21 correspond to the first lower cavities 11 one by one, the middle position of the top mold plate 2 is fixed with the plug bushes 22, the outer side of the top mold plate 2 is provided with the open slots 23, the size of the open slots 23 is larger than that of the handles 13, the top surface of the bottom mold plate 3 is provided with two rows of second lower cavities 31 arranged in a horizontal and equidistant manner, the second lower cavities 31 correspond to the second upper cavities 14 one by one, the middle position of the bottom mold plate 3 is fixed with the plug blocks 32, the interior of the plug bushes 22 is hollow, the bottom of the plug bushes 22 is open, the outer size of the plug blocks 32 is matched with the inner size of the plug bushes 22, the bottom mold plate 3 is connected with the top mold plate 2 in a plugging manner through the plug blocks 32 and the plug bushes 22, when the middle mold plate 1, the top mold plate 2 and the bottom mold plate 3, and the insertion block 32 of each bottom template 3 is ensured to pass through the through groove 12 of the corresponding middle template 1, the middle template 1 and the bottom template 3 are combined, then each top template 2 is covered at the top of the middle template 1, so that the insertion block 32 on each bottom template 3 is inserted into the insertion sleeve 22 on the corresponding top template 2, meanwhile, the handle 13 of the middle template 1 passes through the open groove 23 of the top template 2, the assembly of the middle template 1, the top template 2 and the bottom template 3 is completed, and then the product can be produced by using the mold with the two-layer layout.

As shown in fig. 1-3, the communicating mechanism 4 includes a pouring pipe 41, two conveying pipes 42 and a communicating pipe 43, two identical conveying pipes 42 are installed on two sides of the pouring pipe 41, the dimensions of a pouring system and a pouring riser of the pouring pipe 41 are designed through process simulation, each conveying pipe 42 communicates with the first lower mold cavity 11 and the second upper mold cavity 14 in the same row in the middle mold plates 1 on two sides, after the molds in the two-layer layout are produced and solidified and fed, slurry is injected through the pouring riser of the pouring pipe 41, and is conveyed to the communicating pipe 43 through the conveying pipe 42, and then enters a layer of mold between the middle mold plate 1 and the top mold plate 2 and a layer of mold between the top mold plate 2 and the bottom mold plate 3 through the communicating pipe 43, so that the products on the upper layer and the lower layer are solidified and fed through the pouring riser of one pouring pipe 41.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a cold sand core shaping outer mould, includes well template (1), top template (2), die block board (3) and intercommunication mechanism (4), its characterized in that: the top cover of well template (1) is equipped with top template (2), the bottom of well template (1) is located there is end template (3), form the one deck between well template (1) and top template (2), form the one deck between top template (2) and end template (3), two-layer overall arrangement about well template (1), top template (2) and end template (3) are constituteed, 24 moulds of every layer, four well template (1) is connected through communicating mechanism (4).

2. A cold sand core forming external mould according to claim 1, characterized in that the top surface of the middle mould plate (1) is provided with two rows of first lower mould cavities (11) which are arranged horizontally and equidistantly, the middle of the middle mould plate (1) is provided with a through groove (12), the outer side of the middle mould plate (1) is fixed with a handle (13), and the bottom surface of the middle mould plate (1) is provided with two rows of second upper mould cavities (14) which are arranged horizontally and equidistantly.

3. The outer mold for molding the cold sand core as claimed in claim 1, wherein the bottom surface of the top mold plate (2) is provided with two rows of first upper mold grooves (21) which are horizontally arranged at equal intervals, the first upper mold grooves (21) correspond to the first lower mold grooves (11) one by one, the middle position of the top mold plate (2) is fixed with an insert sleeve (22), the outer side of the top mold plate (2) is provided with a notch (23), and the size of the notch (23) is larger than that of the handle (13).

4. A cold sand core forming outer mould according to claim 1, characterized in that the top surface of the bottom mould plate (3) is provided with two rows of second lower mould cavities (31) which are arranged horizontally and equidistantly, the second lower mould cavities (31) correspond to the second upper mould cavities (14) one by one, and the middle position of the bottom mould plate (3) is fixed with an insert block (32).

5. A sand core outer mould according to claim 3, characterized in that the inside of the insert sleeve (22) is hollow, the bottom of the insert sleeve (22) is open, the external dimension of the insert block (32) is matched with the internal dimension of the insert sleeve (22), and the bottom mould plate (3) is connected with the top mould plate (2) through the insert block (32) and the insert sleeve (22).

6. A chill core forming outer mould according to claim 1, characterized in that the connection means (4) comprises a casting pipe (41), a duct (42) and a connection pipe (43), that two identical ducts (42) are installed on both sides of the casting pipe (41), and that each duct (42) connects the first lower mould groove (11) and the second upper mould groove (14) of the same row in the two side middle mould plates (1).